Anagram

anagram.js

const anagram = (word1, word2) => {
	
	const w1 = word1.toLowerCase().replace(/\s+|!/g, '').split('');
	const w2 = word2.toLowerCase().replace(/\s+|!/g, '').split('')
	const letters1 = w1.reduce((prev, current, val) => {
		if (typeof prev[current] !== 'undefined') {
			return { ...prev, [current]: prev[current] + 1 }
		}
		return { ...prev, [current]: 1 }
	}, {})
	const letters2 = w2.reduce((prev, current, val) => {
		if (typeof prev[current] !== 'undefined') {
			return { ...prev, [current]: prev[current] + 1 }
		}
		return { ...prev, [current]: 1 }
	}, {});
	const letterCheck = word1.length > word2 ? letters1 : letters2;
	return Object.keys(letterCheck).every((val, index) => (
		letters2[val] === letters1[val]
	));
}